diff --git a/lib/sysfs.c b/lib/sysfs.c
index 6e7a1e0ae..89600bfdd 100644
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@@ -409,6 +409,7 @@ char *sysfs_get_slave(struct sysfs_cxt *cxt)
 	return name;
 err:
 	free(name);
+	closedir(dir);
 	return NULL;
 }